"Solo Learn" but can't do challenges by myself

Question

The app is called Solo Learn but I need other people to do quizzes?

Is there another way to do challenges by myself?

Answer 1

There isn't.

Answer 2

If you think about it, there's not much of an interaction anyway: Both players answer the same questions is all.

Might as well forget about the opponent altogether.

Answer 3

You challenging others is different from challenging yourself.
You can challenge your self by setting an "Exam" but here you challenge others to test wether you're good.